On May 10, 2005, at 10:36 AM, [EMAIL PROTECTED] wrote:
I recently assembled and XG1 calibrator and began checking some of
my equipment. 4 out of 5 radios that I own indicated an S9 signal,
however, my K2 did not. It registered an S5-S6. A friend of mine
who borrowed my K2 indicated the receiver seemed to be a bit weak.
Is the receiver provably weak, or is the S-meter just stingy? The K2
receiver may be working just fine, you're S-meter may just be
adjusted so that it is very stingy.
I had troubles with my AGC and S-meter on my K2. My notes are in the
archives.
<http://www.ac6rm.net/mailarchive/html/elecraft-list/2002-03/
msg00740.html>
I eventually figured this out. I changed R1 to 30.1 k (newer K2s are
adjustable here) and picked D1 to be a diode with a higher Vf. These
measures helped a little, after I re-adjusted S-HI and S-LO.
The real problem was that Q12 was bad. Since I didn't have a PN2222A,
I substituted a 2N2222A (metal TO-18 package). It's been working
great for a couple of years now.
Bill Coleman, AA4LR, PP-ASEL Mail: [EMAIL PROTECTED]
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901
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